Sol-gel synthesis and characterization of NIO nanoparticles

الملخص EN

In order to study the roles of the crystallite size of an active phase in a catalytic reaction it is of utmost importance to be able to synthesize pure phases of crystallite in the desired size range with a narrow size distribution.

The method to produce a nano of Nickel oxide is described.

Nanoparticles (NPs) of are prepared by thermal decomposition of freshly prepared nickel hydroxide by a sol gel route at 300° .This sample is characterized by Xray diffractometer (XRD) and UV–visible spectroscopy.

The average crystalline space or the separation between atomic planes of NPs is found to be about (2 - 5nm) and the average of particle size is (9- 19 nm).

According to our X-ray and neutron diffraction data, all NiO powders are antiferromagnetically ordered at room temperature.